GitLab email diff improvements
ZD: https://gitlab.com/gitlab-org/gitlab-ce/issues/12820
List of Suggestions:
- Completely highlighted modified lines from edge to edge. Makes them more obvious if the line itself is short.
- Line numbers.
Also referencing other issues:
- Highlight the changed text within the line (Issue https://gitlab.com/gitlab-org/gitlab-ce/issues/3087)
Other Observations
Don't like the "diff language syntax", i.e. the headers giving the lines changed and the +/- notations, however they we do like seeing the function names which are coming as part of that diff language syntax. The git-commit-notifier diffs are more readable.